Valve.



H. G. WILMERLING.

VALVE.

APPLICATION FILED MAY 9. 1913.

Patented Dec. 1, 1914.

Henry G. Wilmer! ing ATTORNEYS THE NORRIS PETERS 60.. PHUTO-LITHO..WASHING TONv D. c.

* NITED STATES rarnn'r @EICE.

HENRY Gr. WILMERLINQ OF NEW YORK, N. Y.

VALVE.

Specification. of Letters latent'.

Patented Dec. 1,1914.

Applicationfiled May a,- 1913. serial no. 7663,6012

To all whom it may] concern Be it known that I, HENRY G. WILMER.

LING, a citizenof the United States,- and a" the screw becomes corrodedand there" is difficulty in removing the washer to renew the same.

My invention provides a means for retaining the washer and permittingits revolution relatively to the valve stem, the parts being so arrangedthat the w asher may be very readily removed when desired, but will Y beheld properly in place against accidental displacement during use. Alsowith faucets, the valve seat becomes worn to an extent to be almostuseless, requiring. the faucet to be discarded.

My invention provides an auxiliary seat which is particularly adapted tomy improved washer and its retaining means; the auxiliary seat is of acharacter to be inserted in the valve above the ordinary seat andwithout change in the latter.

The distinguishingfeatures of my inven: tion, and the importantstructural elements characterizing the 1 preferred embodiment which isillustrated as an example,will be moreparticularly explained in thespecific description hereinafter to be given.

Reference is to be had to the accompanying drawings forming a part ofthis specification. in which similar characters of,ref-.

erence indicate corresponding parts in, all the views.

Figure 1 is a side elevationv with parts! in section, showing a faucetembodying my invention; Fig. 2 is a fragmentary side elevation of thelower end of the valve stem; Fig. 3 is a perspective view of the washer,the disk that constitutes the backing for the washer and may rotate withthe latter,'and a ferrule to retain said parts; Fig. 4 is a perspectiveview of the auxiliary tered into the slot.

valve seat; and Fig; 5 is a detail vertical section illustrating amodification.

In the form shownin Figs. 1 to 4,-a faucet 10 of common form is shownhaving a valve seat 11, and a handled valve stem 12', movable to movethe valve toward and from the valve seat. Ontheheadi 13"of the valveIO'isXseated a disk 14, which forms the backing for awasher 15', whichmay be of leather or other suitable material as is usual in devices ofthis kind. The head 13 is formed at the surface presented toward thevalve seat 11, with a central depression 16, preferably conical, and acorresponding projection 17' is produced on the back of the disk 14, tobe received in the depression 16 and constitute a center of rotation forthe said disk and a center of limited rocking movement of the disk asthe washer engages the seat. Thepro'jection' 17 may be produced bystriking up the material of the disk at the center. I

To retain the disk 14 and washer 15 place at the under side of the valvestem", while permitting the relative rotation of the valve stem, thimbleor ferrule 18*is provided and properly held to the valve stem back ofthe disk 14. As one means for retaining the thimble 18 in place, I haveshown a bead or annular rib 19 on the valve head, thereby producing .acontraction at through the thimble. thereby presenting an,

opening through which the disk 14 and washer 15 may be entered laterallyinto the? thimble. As seen best in Fig. 2, the slot 21 is not parallelwith the upper and lower ends 'of' the thimble, but is inclined to theaxis of the thimb e, being in the form of app ox mately half of aconvolution, and its height is such as to permit the washer 15 to beentered laterally when brought parallel with the slot and into alinementtherewith. the lesser thickness of the disk 14 permitting said disk tobereadily ra.

After the disk and Washer have been entered they are brought parallelwith the face of the valve stem, in which position, as will be seen fromFig. 2, the washer and disk will have a parallel movement in dropping tothe contracted end 18. When in position the washer 15 will have aportion thereof at all times overlapping either the portion of thethimble 18 above the slot, or a portion at the opposite side overlappingthe said thiinble below the slot, and the washer will thus have notendency to lateral displacement out of the slot. By so projecting thelower contracted end of the thimble beyond the washer as to permit aplay of the washer and disk in the direction of the axis of the valvestem, they will not be held for long periods pressed in position againstthe valve stem, and will be maintained perfectly loose and free topermit the relative rotation of the stem; moreover, the provision of theslot as described as a means for the entrance and removal of the washer,permits of the ready renewal of the washer, as is required in practiceto maintain the faucet in perfect condition.

In order to insure that the valve seat is of a character to accommodatethe thimble 18, I provide an auxiliary seat 22. made tubular for thepassage of the fluid therethrough. The upper portion of the auxiliaryvalve seat is cylindrical. as at 22, while the lower portion 22", whichis of reduced diameter to enter the faucet within the valve seat 11 andextend below the latter, may be made slightly tapered, to conform toanvslight variations in the water passage of the valve seat ofparticular faucets. The reduced lower portion 22 and the larger upperportion 22 result in an overhanging shoulder 22, which comes to abearing on the ordinary valve seat 11, as will be understood from Figs.1 and 4. The height of the up per portion 22 of the auxiliary valve seatis such as to insure that the washer will be pressed tishtly against thesaid auxiliary seat and effect a proper closure of the valve, sinceobviously there will be considerable movement of the valve stem towardthe seat, after the contact of the washer with the seat, without a firmclosure being effected. An important feature of the auxiliary valve seatas described. is that it makes it possible to preserve the life of thefaucet after the ordinary seat has become so worn as to no longer give aproper service. and thus many faucets that are now discarded may be restored to perfect efliciency.

In the form shown in Fig. 5, the faucet A has the valve head 13 as inthe other form, as well as the described washer 15 and disk 14. Thethimble 18 in Fig. 5, instead of being permanently crimped onto thevalve head, slides frictionally thereon, and in addition also, may havean internal projection 18 at one or more points around the thimble,there being corresponding depresheight and rises sufliciently to beoverlapped by the thiinble 18 in the raised position of the thimble, toinsure that the washer will be pressed tightly against said seat asdescribed above in connection with the auxiliary seat.

I he described construction affords a simple means for carrying myinvention into effect, and I would state in conclusion that I do notlimit myself strictly to the mechanical details herein illustrated,since manifestly the same can be considerably varied without departurefrom the spirit of the invention.

Having thus described my invention, I claim as new, and desire to secureby Letters Patent 2- 1. A valve having a valve seat, a valve stem, a*asher, and a thimble carried by the valve stem and surrounding thewasher, the said thiinble projecting beyond the washer and having alateral slot through which the washer may be entered and removed, saidslot being inclinedv to the axis of the valve stem.

2. A valve having a valve seat, a valve stem, a washer, a backing plateat the back of the washer, and a thimble carried by the valve stem andsurrounding the washer, the said thiinble projecting beyond the washerand having a lateral slot through which the washer and backing plate maybe entered and removed, the said slot being inclined to the axis of thevalve stem.

3. A valve having a valve seat, a valve stem, a washer at the end of thestem, a backing plate between the washer and stem, said plate and stemhaving respectively a central projection and a corresponding recess, anda thimble on the stem inclosing the washer and its backing plate and inwhich the washer and plate have axial movement, the

depression serving to center the projection and backing plate in thethimble.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HENRY G. IVILMERLING.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

- Washington, D. G

